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Tamalur Shaikh's avatar
Tamalur Shaikh
Copper Contributor
Sep 27, 2018

SharePoint Framework debugging issue

Hi 

 

Did anyone face the following issue

While I was debugging SP Framework code I got "Unverified break point" at any break point. I followed all steps but still got same issue. I saw following error in debug console.

 

Failed to load resource: the server responded with a status of 404 (Not Found) [https://localhost:4321/temp/workbench-packages/@microsoft_sp-loader/dist/sp-loader-assembly_default.js]
 
Failed to load resource: the server responded with a status of 404 (Not Found) [https://localhost:4321/temp/workbench-packages/@microsoft_sp-webpart-workbench/lib/api/workbenchInit.js]
 
Failed to load resource: the server responded with a status of 404 (Not Found) [https://localhost:4321/temp/workbench-packages/@microsoft_sp-loader/dist/sp-loader-assembly_default.js]
 
Refused to execute script from 'https://localhost:4321/temp/workbench-packages/@microsoft_sp-loader/dist/sp-loader-assembly_default.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. [https://localhost:4321/temp/workbench.html]
 
Failed to load resource: the server responded with a status of 404 (Not Found) [https://localhost:4321/temp/workbench-packages/@microsoft_sp-webpart-workbench/lib/api/workbenchInit.js]
 
Refused to execute script from 'https://localhost:4321/temp/workbench-packages/@microsoft_sp-webpart-workbench/lib/api/workbenchInit.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled. [https://localhost:4321/temp/workbench.html]
 
TypeError: Cannot read property 'start' of undefined
workbench.html:69
at c:\spfxdemo\temp\workbench.html:69:30
 
 

3 Replies

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  • Ved Mishra's avatar
    Ved Mishra
    Copper Contributor
    Oct 16, 2018

    I am facing exactly same issue. Were you able to figure it out?

    • Tamalur Shaikh's avatar
      Tamalur Shaikh
      Copper Contributor
      Oct 16, 2018

      No I have no resolution. I am waiting for a reply here with resolution.

      If you find something please post it here. I will do same.

       

      Thanks.

       

       

      • shreyas ganta's avatar
        shreyas ganta
        Copper Contributor
        Oct 20, 2018

        https://github.com/SharePoint/sp-dev-docs/issues/2507

        I was facing the same problem recently. I found the suggestion in the above github issue helpful to solve this exact problem. As noted in the issue, this only occurs for projects using spfx 1.5 and up. You will have to launch https://localhost:5432/workbench

        instead of https://localhost:4321/temp/workbench.html

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